People have gotten used to the restrictions on smoking in public places, so I think allowing it in previously banned spaces would be a retrograde step.
Probably ok to allow it in certain sections of pubs, airports etc. My friend pops into the loos (cublicle) in the airport and vapes away. There is no residual smell, and the smoke alarms did not go off. Kept her sane whilst waiting hours for a delayed flight!
I personally have no issue with vaping, off you go, and it's great that a vast number of smokers have switched. It has to be a good thing. I also have no issue with vapers in my house either.
The smell of cigarette smoke is awful though, I think we all agree on that one!
And no, the NHS should not have it on the script list either. They don't have one for cigarettes do they, and people could afford to smoke, so they can afford to vape also, apparently the cost is tiny apart from the initial outlay, in comparison with tobacco.
Best of luck to all those who switched. Best thing ever.
Hope the Government don't end up taxing vape juice or something, but that would be stupid, meaning cigs would be the same price.